NASA astronaut Donald Petit has shared a video ... Solar winds are the ions continuously streaming from the sun's surface.

"I was right in the middle of emptying the contents of my stomach onto the steppes of Kazakhstan," Pettit recalled ...

NASA's oldest full-time astronaut is back home and doing well a week after wrapping up a seven-month space mission.

"You're floating, and your body, all these little aches and pains, and everything heal up, and you feel like you're 30 years ...

"I was right in the middle of emptying the contents of my stomach onto the steppes of Kazakhstan," Pettit recalled Bill Ingalls/NASA via Getty Astronaut Don Pettit is opening up about his return ...

NASA astronaut Nichole Ayers and JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi will answer prerecorded ...

NASA's oldest full-time astronaut said that during his most recent trip to the space station, he didn't feel his age at all.

Astronaut Don Pettit spent seven months aboard the ISS, even spending his 70th birthday on board the station.

After seven months, 93 million miles, and 670,000 photos, astronaut Don Pettit has returned to Earth. Pettit is taking part in a news conference on Monday, April 28, to discuss his 220-day mission to ...

NASA's oldest astronaut, who spent 220 days in space, has spoken about one of the most difficult parts of returning to Earth.

Greetings! We’re losing Mercury from our early morning skies, but Venus and Saturn will appear quite close together this week ...